OpenHarmony/third_party_mesa3d
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better animate rate (Marcelo Magallon)

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This commit is contained in:
Brian Paul
2005-01-09 17:37:50 +00:00
parent 516f9bc6e3
commit 92eddb0fd4
17 changed files with 177 additions and 77 deletions
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25
progs/demos/tunnel.c
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@@ -9,14 +9,14 @@
#include <stdio.h>
#include <stdlib.h>
#include <math.h>
#include <time.h>
#include <string.h>
#ifdef WIN32
#include <windows.h>
#endif
#include <GL/glut.h>
#include "readtex.c"
#include "readtex.h"
#include "tunneldat.h"
#ifdef XMESA
@@ -55,7 +55,7 @@ static int win = 0;
static float obs[3] = { 1000.0, 0.0, 2.0 };
static float dir[3];
static float v = 0.5;
static float v = 30.;
static float alpha = 90.0;
static float beta = 90.0;
@@ -84,7 +84,7 @@ inittextures(void)
glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_REPEAT);
glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER,
GL_LINEAR_MIPMAP_LINEAR);
GL_LINEAR_MIPMAP_NEAREST);
glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
glGenTextures(1, &t2id);
@@ -160,6 +160,13 @@ drawobjs(const int *l, const float *f)
static void
calcposobs(void)
{
static double t0 = -1.;
double dt, t = glutGet(GLUT_ELAPSED_TIME) / 1000.0;
if (t0 < 0.0)
t0 = t;
dt = t - t0;
t0 = t;
dir[0] = sin(alpha * M_PI / 180.0);
dir[1] = cos(alpha * M_PI / 180.0) * sin(beta * M_PI / 180.0);
dir[2] = cos(beta * M_PI / 180.0);
@@ -171,9 +178,9 @@ calcposobs(void)
if (dir[2] < 1.0e-5 && dir[2] > -1.0e-5)
dir[2] = 0;
obs[0] += v * dir[0];
obs[1] += v * dir[1];
obs[2] += v * dir[2];
obs[0] += v * dir[0] * dt;
obs[1] += v * dir[1] * dt;
obs[2] += v * dir[2] * dt;
}
static void
@@ -204,10 +211,10 @@ key(unsigned char k, int x, int y)
break;
case 'a':
v += 0.01;
v += 5.;
break;
case 'z':
v -= 0.01;
v -= 5.;
break;
#ifdef XMESA